Catalyst for aromatization of alkanes, process of making and using thereof
US6784333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2002 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Aug 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene and xylene. The catalyst is an aluminum-silicon-germanium zeolite on which platinum has been deposited. Germanium is in the framework of the crystalline zeolite. Platinum is deposited on the zeolite. The catalyst may be supported on magnesia, alumina, titania, zirconia, thoria, silica, boria or mixtures thereof. The catalyst may contain a sulfur compound on the surface of the catalyst. The sulfur compound may be added to the catalyst in a pretreatment process or introduced with the hydrocarbon feed to contact the catalyst during the aromatization process. Generally, the catalyst may be of the formula M[(SiO2)(XO2)x(YO2)y]Z+y/n where M is a noble metal such as platinum or gold, X is titanium, germanium, tin or another tetravalent element, Y is boron, aluminum, gallium, indium, tellurium or another trivalent element, Z is a cation with a valence of n such as H+, Na+, K+, Rb+, Cs+, Ca2+, Mg2+, Sr2+ or Ba2+, x varies from 0-0…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.